mariadb应用系列之（三）基于maxscale的读写分离架构

1. 环境说明
软件版本
操作系统：CentOS Linux release 7.3.1611 (Core) (3.10.0-514.el7.x86_64)

MariaDB-server：10.2.30

maxscale：2.3.8

硬件环境

node1 172.16.100.51 maxscale
node2 172.16.100.52 mariadb-server

node3 172.16.100.53 mariadb-server

node3 172.16.100.54 mariadb-server

2. 中间件配置(on node1)

配置文件：/etc/maxscale.cnf

server定义

[server1]
type=server
address=172.16.100.52
port=3306
protocol=MariaDBBackend

[server2]
type=server
address=172.16.100.53
port=3306
protocol=MariaDBBackend

[server3]
type=server
address=172.16.100.54
port=3306
protocol=MariaDBBackend

monitor定义

[MariaDB-Monitor]
type=monitor
module=mariadbmon
servers=server1,server2,server3
user=maxscale
password=passwd
monitor_interval=2000
auto_failover = true
auto_rejoin = true

service定义

[Read-Write-Service]
type=service
router=readwritesplit
servers=server1,server2,server3
user=maxscale
password=passwd

listener定义

[Read-Write-Listener]
type=listener
service=Read-Write-Service
protocol=MariaDBClient
port=3306

[MaxAdmin-Listener]
type=listener
service=MaxAdmin-Service
protocol=maxscaled
socket=default
3. 主从复制架构配置

mariadb应用系列之（二）基于GTID的主从复制(Replication)

在master节点上添加账号

grant all privileges on *.* to 'maxscale'@'%' identified by 'passwd';

备注：这个账号用于配置maxscale的监听器monitor，服务service；monitor的账号主要用于监控db cluster中各个主机的状态，service中的账号主要用于maxscale与db backend通信时的用户认证。

4. 启动maxscale中间件服务

# systemctl start maxscale.service

# maxctl list servers

┌─────────┬───────────────┬──────┬─────────────┬─────────────────┬───────────┐
│ Server │ Address │ Port │ Connections │ State │ GTID │
├─────────┼───────────────┼──────┼─────────────┼─────────────────┼───────────┤
│ server1 │ 172.16.100.52 │ 3306 │ 0 │ Master, Running │ 0-1000-14 │
├─────────┼───────────────┼──────┼─────────────┼─────────────────┼───────────┤
│ server2 │ 172.16.100.53 │ 3306 │ 0 │ Slave, Running │ 0-1000-14 │
├─────────┼───────────────┼──────┼─────────────┼─────────────────┼───────────┤
│ server3 │ 172.16.100.54 │ 3306 │ 0 │ Slave, Running │ 0-1000-14 │
└─────────┴───────────────┴──────┴─────────────┴─────────────────┴───────────┘

Reference：

1. maxscale安装

2. Monitor配置说明

3. 读写分离配置说明

来源：CSDN

作者：weixin_44260058

链接：https://blog.csdn.net/weixin_44260058/article/details/103782259

标签

maxscale

mariadb